Hand-borer



(No. Model.)

W. E YGLoUGH.

HAND BORBR.

No. 295,523. Patented Mar. 25,1884.

Lewes. 0j l7,52144/6.. WL

y. Umm STATES PATENT VILLARD E. OLOUGH, OF OONCORD,1NEV HAMPSHIRE, ASSIGNOR OF ONE- `HALF TO PHILLIP' PETHICK, OF SAME PLACE.`

HAND-Bossu.

SPECIFICATION forming part of Letters Patent No. 295,523, dated March 25, 1884.

Application filed September 24, 1883. (No model.)

To @Zlio/bom, it may concern:

Be it known that I, WILLARD E. CLOUGH, a citizen of the United States, and a resident of Concord, in the county of Merrimac and State of New Hampshire, have invented a useful and Improved Hand-Borer; and I hereby declare the following to be a full and clear description thereof.

My improvement consists in the application of certain mechanism, whereby the bit-stock77 or brace by-reason of the pressure of ones hand, will have` a reciprocal action perpendicular to the work into which the bit maybe boring, the required movement of ones hand operating this improved tool being alternately toward and away from the work which is being operated upon, and, whichever way the hand is moved, the bit is made to revolve at all times in the same direction, thereby preventing to any great extentthe accumulation of chips or shavings in the hole which is being bored. In other words, by reason of the bit being revolved continually in the same direction the hole is kept clear, and is left vso when the bit is removed. This tool will be found equally as convenient and handy for use on light work by machinists, as by carpenters and wood-workers generally.

Referring to the drawings, in which similar letters of reference indicate similar parts in all the figures, Figure 1 represents a side View of the'improved hand-tool, with a portion of the cylindrical handle or shell broken away sufficientlyto show the mechanism contained therein, by which the bit-spindle is made to revolve. Fig. 2 is an enlarged perspective view of the short shaft carrying the bevel-gear, which engages in the bevel-gear placed upon the ver- Y tical shaft or bitspindle, as` `shown in Eig. l;

Fig. 3 is an enlarged detail view of one ofthe grooved pulleys, as when removedv from the short shaft shown in Fig. 2.

In the lower end of the bitspindle A is formed a round or square tapering hole, a, within which a bit or drill may be fastened by means of a spring-catch or set-screw. On the upper end of said bitspindle a bevel-gear, B, is placed, which engages in and receives its motion from a similar gear, C, hung upon a shortshaft, D, which is placed perpendicular for the bit-spindle A is formed in the lower head or end piece, f, of the cylindrical handle E, which is formed hollow, and within which is inclosed the entire working mechanism of the borer. Another bearing for the bit-spindle A is provided in the piece G, both ends of which project upward far enough to receive the shaft D. By, thisform of construction the piece G serves as a hanger for said shaft D, as well as a bearing for the bit-spindle A. The hanger G is kept in position by means of a pin, g, projecting from either end thereof and entering slots f', eut longitudinallyand opposite one with the other in the sides of the hollow handle F, by means of which the hanger G is permitted to'slide up and down within the A hollow handle E, carrying with it the bit-spindle A. Two driving-cords, H, of suitable` strength and material, are provided, the upper ends being secured at the proper place upon the inside and near the top of the hollow handle F, and, after. passing around the grooved pulleys E, the ends of said cords are secured to suitable springs, h, held by screws upon the inside of the lower head or end piece, f, of the hollow handle F. These springs h exert a certain tension upon the cords H, `which enables them torevolve the pulleys E.

The handle F has a cap or cover, fgmupon which ones hand will rest when operating the improved borer. A spiral spring, I, of such diameter as will nearly fill the hollow handle F, is placed withinsaid handle in such a man-` ner that all of its expansive force is brought to bear upon and between the cap or cover f2 of the handle F and the hanger G. Thus as the pressure of ones hand is brought to bear upon the handle F the spring I is gradually compressed, while the cords H, being fastened at both ends of the handle F and passed.` once around the pulleys E, rotate said pulleys, and with them the shaft D, bevel-gears C B, and bit-spindle A. When the hollow handle F has passed downward its extreme limit of movement, the expansion of the spring I is such as IOO way, and to carry the shaft with them when turned the opposite way, and by carrying the t cords .H around the pulleys E, as shown in Fig.

1, (one over the front side andthe other over the back side,) said pulleys are given an alternative motion-#5. e., one driving the shaft D and bit-spindle A, while the other is permitted to slip on the shaft, and vice versa.

Having thus fully described my invention,

what I claim, and desire to secure by Letters Patent ofthe United States, is-

In a hand boring-tool, the `hollow handle F, having a reciprocal motion upon the bitspindle A, and containing mechanism, consisting of a spiral spring, I, and said bit-spindle A,

connected by means of the bevel-gears B C to.

the horizontal shaft D, carried by the hanger G, and provided with grooved pulleys E, to which are attached spring-pawls K and ratchet-wheels J, all combined and arranged to be driven continuously in one direction by means ofthe driving-cords H, substantially as specied, and for the purposes hereinbefore set forth.

VVILLARD E. CLOUGH:

Witnesses:

J. B. Tnunsron, PHILIP PE'rHlcK. 

